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Severity: Notice
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Filename: controllers/presentation.php
Line Number: 875
Severity: Notice
Message: Trying to get property of non-object
Filename: controllers/presentation.php
Line Number: 875
Author(s):
1. Dragoljub Mirjanić, Akademija nauka i umjetnosti Republike Srpske,
Republic of Srpska, Bosnia and Herzegovina
2. Jovan Šetrajčić, Univerzitet u Novom Sadu, Prirodno-matematički fakultet, Departman za fiziku, Serbia
3. Nenad Delić, Armenia
4. Stevan Armaković, Serbia
5. Igor Šetrajčić, Armenia